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LiM Laser helps HKUST to publish important research results in JMP for two consecutive years
Author：
Time：2024-07-15
In 2022, the Department of Mechanical and Aerospace Science of the Hong Kong University of Science and Technology (HKUST) introduced the first metal 3D printing equipment - LiM Laser LiM-X150A series, and carried out research with the help of this equipment, and achieved a series of fruitful scientific research results.
With the help of LiM laser metal 3D printing total solution, the team of Mr. Yanglong Lu (https://maeylu.people.ust.hk) from the Department of Mechanical and Aerospace Science of the Hong Kong University of Science and Technology (HKUST) has been targeting at the monitoring of the printing process, optimization of the printing parameters, optimization of the structure of the porous material, and the prediction and control of the melt pool thermal flow field. For two consecutive years, the team has published important research results in the top journal "Journal of Manufacturing Processes", which are.
A slicing and path generation method for 3D printing of periodic surface structure. Journal of Manufacturing Processes, 120, 694-702. (IF: 6.1, Chinese Academy of Sciences, Class I, Region I) )
A feature-based physics-constrained active dictionary learning scheme for image-based additive manufacturing process monitoring. Manufacturing Processes, 103, 261-273. (IF: 6.1, CAS Large Group I)
Metal 3D printing, as an emerging technology, completely changes the product design and manufacturing process, and is regarded as a key basic technology to support the innovation and development of manufacturing industry, and is widely used in aerospace, energy and power, automobile manufacturing, mold manufacturing and other fields to achieve the leapfrog development of core manufacturing technology. Similarly, university research institutions also pay special attention to metal 3D printing technology, fully applied to research and development, education and teaching.
1、Specialized customized program
Based on the needs of scientific research projects, the Hong Kong University of Science and Technology independently modified LiM-X150A series equipment, integrated thermal imaging and high-speed camera. Using thermal imaging technology, real-time monitoring and recording of temperature distribution and heat conduction in the metal 3D printing process; by analyzing the thermal imaging data, optimize the printing parameters, improve the structural design, improve the printing quality and manufacturing efficiency, in order to better study the melting behavior of metal materials, solidification process and thermal stress analysis.
Using a high-speed camera to capture the rapid motion and deformation during metal 3D printing, providing high frame rate image recording; by analyzing the video recorded by the high-speed camera, we can gain a deeper understanding of the physical phenomena during the printing process, capture potential defects, and optimize the printing path, which will help us to study the splashing of the metal powder, the morphology characteristics of the molten pool, and the solidification process of the metal during the printing process.
At present, Mr. Lu's team is carrying out research on new topics. LiM-X150A series equipment is less difficult to operate, with excellent printing precision, stability and consistency, and the parts prepared can meet the experimental requirements, which effectively ensures the project process.
2、Optimize the process of education and teaching
In terms of education and teaching, LiM-X150A series equipment is mainly used in the daily teaching of CAD/CAM courses for mechanical majors. Combined with the characteristics of metal 3D printing, it guides students to explore the optimized design of lightweight structure, internal cavity structure, support structure, etc.; students practice in person, design metal parts and print them. The combination of theory and practice helps students better understand and master knowledge.
3、Broad prospects for future development
When mentioning the future development prospects of metal 3D printing technology, Mr. Lu believes that with the maturity of technology development and further cost reduction, metal 3D printing will be widely used in more industries.
In the field of energy and power, it can be used to manufacture high-efficiency energy equipment and components, such as gas turbine blades, solar panels and nuclear power equipment, to improve energy conversion efficiency and reduce costs. In the field of automotive manufacturing, it is used to produce lightweight parts and components, increase fuel efficiency, improve vehicle performance, enhance safety and accelerate the development and improvement of automotive prototypes. In addition, metal 3D printing technology will shine in the defense industry, shipbuilding, 3C electronics and other fields.
At present, LiM Laser has provided metal 3D printing equipment for Hong Kong University of Science and Technology, Hebei University of Technology, Hebei University of Science and Technology, Xi'an University of Science and Technology, Beijing University of Science and Technology, China University of Geosciences (Wuhan), Sichuan Engineering Vocational and Technical College, Guangdong Institute of Light Industry Vocational and Technical College, etc., which has helped the users to explore the topics of research and realize the development of scientific research.
In the future, we will continue to focus on the core demands of universities in education and research, and continue to upgrade the design and manufacture of metal 3D printing equipment and professional services, to promote production through research, and to persist in improving, to help users to explore scientific research projects in depth, to attack the core technology, and to release the power of innovation.
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